[Add] Resize Operator unit-tests

Added test Resize operator

src/operator/Resize.cpp

@@ -65,13 +65,18 @@ bool Aidge::Resize_Op::forwardDims(bool allowDataDependency) {
             std::vector<DimSize_t>      outDims = getInput(0)->dims();
             const std::vector<DimSize_t> inDims = getInput(0)->dims();
 
+            // declaration of smart pointer that retains shared owenership of an object, a dynamic type of tensor
             std::shared_ptr<Tensor> fallback;
-            const auto& scales = getInput(2)->refCastFrom(fallback, NativeType<int64_t>::type, "cpu");
+
+            // const referance variable -> initializing with the results of refCastFrom function
+            // refCastFrom is called on the object returned by getInput(2)
+            // function cast input tensor to the type specified
+            const auto& scales = getInput(2)->refCastFrom(fallback, NativeType<float>::type, "cpu");
 
             for (std::size_t dim=0; dim < getInput(2)->size(); ++dim) {
-                outDims[dim] = inDims[dim]*static_cast<int64_t*>(scales.getImpl()->hostPtr())[dim];
+                float scale = static_cast<float*>(scales.getImpl()->hostPtr())[dim];
+                outDims[dim] = static_cast<int64_t>(inDims[dim] * scale);
             }
-
             mOutputs[0]->resize(outDims);
             return true;
         }
@@ -89,8 +94,9 @@ bool Aidge::Resize_Op::forwardDims(bool allowDataDependency) {
             std::shared_ptr<Tensor> fallback;
             const auto& sizes = getInput(3)->refCastFrom(fallback, NativeType<int64_t>::type, "cpu");
 
-            for (std::size_t dim=0; dim < getInput(3)->size(); ++dim) {            
-                outDims[dim] = static_cast<int64_t*>(sizes.getImpl()->hostPtr())[dim];
+            // Replace the last two dimensions of outDims with the last two dimensions from sizes
+            for (std::size_t dim = sizes.size() - 2; dim < sizes.size(); ++dim) {
+                outDims[outDims.size() - 2 + (dim - (sizes.size() - 2))] = static_cast<int64_t*>(sizes.getImpl()->hostPtr())[dim];
             }
             
             mOutputs[0]->resize(outDims);